Sterling gains as Brexit campaigning suspended | Reuters

NEW YORK Sterling advanced on Thursday as campaigning for Britain's vote on whether to leave the European Union was suspended following the murder of a British lawmaker, while U.S. stocks cut losses.

British Member of Parliament Jo Cox, who was shot dead in the street in her constituency in northern England earlier in the day, had been a vocal supporter of Britain remaining within the EU.

Whether Britain will leave the European Union, dubbed "Brexit," is an issue that will be decided in a referendum next week and could undermine decades of European integration and stoke global economic uncertainty.

"Certainly, people are talking about the possibility that this does influence the Brexit vote in favor of remain. It is a tragic event all around. There is a sense, there is an immediate emotional reaction, but there is still a week before the referendum itself" on June 23, said Alan Ruskin, global co-head of FX research at Deutsche Bank in New York.

The British pound hit a U.S. trading high GBP= after the news, and was last up slightly at $1.4207.

Rival referendum campaign groups in Britain said they were suspending activities for the day and Prime Minister David Cameron said he would pull out of a planned rally in Gibraltar, the British territory on the southern coast of Spain.

U.S. stocks, which had tumbled earlier on global growth worries, cut losses and the Dow briefly traded higher.

The Dow Jones industrial average .DJI was up 17.67 points, or 0.1 percent, at 17,657.84, the S&P 500 .SPX lost 2.41 points, or 0.12 percent, to 2,069.09 and the Nasdaq Composite .IXIC dropped 10.81 points, or 0.22 percent, to 4,824.12.